Breathing machine

Abstract

The breathing machine comprises a main machine and a humidifier connected to the main machine, the humidifier is provided with a water storage chamber, an air inlet communicated with the water storage chamber and a metal sheet arranged at the bottom of the water storage chamber, the main machine comprises a shell, an air channel and an electromagnetic transmitting device, and the air channel and the electromagnetic transmitting device are arranged in the shell. At least part of the humidifier is mounted in the shell; the air inlet extends into the shell and is communicated to the air channel, the metal sheet is located above the electromagnetic emission device, and the respirator is configured in the mode that the electromagnetic emission device generates a magnetic field after being powered on, the metal sheet generates heat by cutting the magnetic field, so that the water storage chamber is heated, and the air channel is communicated with the water storage chamber. The heating and humidifying functions of the humidifier are achieved.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a ventilator. Background Technology

[0002] Home-use CPAP machines are typically used to alleviate and improve symptoms such as snoring, hypopnea, and sleep apnea during sleep. They can be used in both home and medical settings. Common home-use CPAP machines include a main unit and a humidifier unit. The humidifier unit is located in the airway path and stores water. By heating the water inside the humidifier to produce steam, it heats and humidifies the air flowing through it, thus preventing discomfort caused by overly dry air entering the patient's respiratory tract and improving patient comfort.

[0003] In existing technology, a metal sheet is placed at the bottom of the humidifier, and an electric heating film is directly attached to the bottom of the metal sheet. The heating film generates heat when energized, and transfers the heat to the metal sheet through heat conduction. The metal sheet then transfers the heat to the water, producing water vapor, thus humidifying the air in the air passage. Because the heating film is located on the humidifier and needs to be energized, the humidifier's sealing and waterproofing performance is required to be high, making it prone to malfunction. Furthermore, this structure results in a large number of parts in the humidifier, making assembly complex and increasing manufacturing costs. Utility Model Content

[0004] One of the objectives of this invention is to provide a ventilator to solve the technical problems of high sealing requirements and high assembly and manufacturing costs in the prior art due to the heating component at the bottom of the humidifier.

[0005] To achieve one of the above-mentioned objectives of this utility model, one embodiment of the present utility model provides a ventilator, including a main unit and a humidifier connected to the main unit. The humidifier has a water storage chamber, an air inlet communicating with the water storage chamber, and a metal plate disposed at the bottom of the water storage chamber. The main unit includes a housing, an air passage disposed within the housing, and an electromagnetic emission device. At least a portion of the humidifier is installed within the housing. The air inlet extends into the housing and communicates with the air passage. The metal plate is located above the electromagnetic emission device. The ventilator is configured such that, after being powered on, the electromagnetic emission device generates a magnetic field, and the metal plate generates heat by cutting the magnetic field, thereby heating the water storage chamber.

[0006] As a further improvement of one embodiment of the present invention, the housing includes a first receiving cavity for installing part of the humidifier and a second receiving cavity located below the first receiving cavity, the first receiving cavity and the second receiving cavity being spaced apart, and the electromagnetic transmitting device being located in the second receiving cavity.

[0007] As a further improvement of one embodiment of the present invention, the housing includes a third receiving cavity located on the side of the first receiving cavity away from the humidifier and a connecting hole located between the first receiving cavity and the third receiving cavity, the air passage is located in the third receiving cavity, and the air inlet passes through the connecting hole and enters the third receiving cavity.

[0008] As a further improvement of one embodiment of the present invention, the electromagnetic transmitting device includes a circuit device and a coil connected to the circuit device, the central axis of the coil passing through the metal sheet.

[0009] As a further improvement of one embodiment of the present invention, the coil is a toroidal coil, and the coil is set to have 2 to 20 turns.

[0010] As a further improvement of one embodiment of the present invention, the electromagnetic transmitting device includes a magnet disposed below the coil, and the arrangement of the plurality of magnets is adapted to the shape of the coil.

[0011] As a further improvement of one embodiment of the present invention, the housing includes a bottom housing located at the bottom, and the electromagnetic transmitting device is disposed on the bottom housing; the bottom housing is provided with a plurality of first support walls arranged along a first direction and second support walls arranged along a second direction, the first direction and the second direction being horizontal and perpendicular to each other; the first support walls and the second support walls surround to form a plurality of fixed cavities, and the electromagnetic transmitting device includes magnets fixed to each of the fixed cavities.

[0012] As a further improvement of one embodiment of the present invention, at least a portion of the coil extends along a second direction, and the second support wall includes a retaining groove recessed from its surface for holding the coil.

[0013] As a further improvement of one embodiment of the present invention, the second support wall includes a plurality of spaced-apart retaining grooves, and a plurality of coils are fixed to the retaining grooves one by one.

[0014] As a further improvement of one embodiment of the present invention, the bottom housing includes a third support wall, which is angled to the first support wall and the second support wall. The third support wall is provided with a retaining groove for holding the coil. The retaining grooves of the second support wall and the third support wall are arranged together to form a ring.

[0015] Compared with the prior art, the present invention provides a ventilator including a main unit, a humidifier, and an electromagnetic heating device disposed at the bottom of the main unit. The electromagnetic heating device is used to heat the metal plate at the bottom of the humidifier, thereby heating the liquid in the humidifier and realizing the heating and humidification function of the humidifier. Attached Figure Description

[0016] Figure 1 This is a perspective view of a ventilator according to one embodiment of the present invention.

[0017] Figure 2 This is an exploded view of the main unit and humidifier in one embodiment of the present invention.

[0018] Figure 3 This is a cross-sectional view of a ventilator according to one embodiment of the present invention.

[0019] Figure 4 This is an exploded view of a ventilator according to one embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of an electromagnetic heating device according to one embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the magnet distribution in one embodiment of the present invention. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0023] The terms used herein, such as “above,” “over,” “below,” and “under,” indicating spatial relative position, are for illustrative purposes to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. These terms may be intended to include different orientations of the device in use or operation other than those shown in the figures. For example, if the device in the figures is flipped, a unit described as being “below” or “under” another unit or feature would be “above” that unit or feature. Therefore, the exemplary term “below” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or otherwise) and the spatially related descriptive terms used herein will be interpreted accordingly.

[0024] Please see Figure 1 The schematic diagram shows that this utility model provides a ventilator 1000 for providing heated and humidified gas to patients, thereby improving the comfort of patients during use.

[0025] Please refer to Figure 2-3As shown, the ventilator 1000 includes a main unit 100 and a humidifier 200 connected to the main unit 100. The humidifier 200 has a water storage chamber 201 for storing liquid, an air inlet 202 communicating with the water storage chamber 201, and an air outlet 203 communicating with the water storage chamber 201. The air inlet 202 is used to communicate with the air passage of the main unit to input gas from the air passage to the water storage chamber 201, and the air outlet 203 is used to communicate with a breathing mask to output gas from the water storage chamber 201 to the breathing mask.

[0026] In one embodiment, the humidifier 200 has a metal plate 210 disposed at the bottom of the water storage chamber 201. The metal plate 210 is typically used to heat the liquid in the water storage chamber 201, so that it generates water vapor which mixes with the incoming gas to obtain heated and humidified gas.

[0027] The humidifier 200 has a bottom cover 220 located below the metal sheet 210. The bottom cover 220 is made of non-metallic material and is used to isolate the heat generated by the metal sheet 210 from the outside and the main unit 100, thereby improving heating efficiency and preventing users from accidentally touching and burning themselves, thus improving safety.

[0028] The main unit 100 includes a housing, an air passage disposed within the housing, and an electromagnetic emission device 300. At least a portion of the humidifier 200 is installed within the housing. The air inlet 202 extends into the housing and connects to the air passage. The metal plate 210 is located above the electromagnetic emission device 300. The ventilator 1000 is configured such that, after being powered on, the electromagnetic emission device 300 generates a magnetic field, and the metal plate 210 generates heat by cutting the magnetic field, thereby heating the water storage chamber 201.

[0029] The electromagnetic emission device 300 generates a high-frequency alternating magnetic field. Under the action of the high-frequency alternating magnetic field, the metal sheet 210 cuts the magnetic field, generating eddy currents, which in turn generate heat. The metal sheet 210 should have good magnetic permeability.

[0030] Thus, the electromagnetic transmitter 300 is positioned at the bottom of the main unit 100, and the main unit 100 is positioned above the electromagnetic transmitter 300 to accommodate part of the humidifier 100. The electromagnetic transmitter 300 is located at the bottom of the humidifier 100 to heat the liquid inside the humidifier, making efficient use of the space in the main unit 100. The air humidification system of the electromagnetic transmitter 300 and the humidifier 200 is separated to avoid risks and malfunctions caused by contact between the air humidification system and the components of the electromagnetic transmitter 300.

[0031] The heating and humidification functions are achieved by electromagnetic heating. The electromagnetic heating device 300 is set on the main unit 100 without contacting the metal sheet 210, but it can directly heat the metal sheet 210. The metal sheet 210 further heats the liquid, realizing heat conduction. The transfer path is short, reducing heat loss during the transfer process and improving heating efficiency.

[0032] In one embodiment, the housing includes a first receiving cavity 101 for mounting part of the humidifier 200 and a second receiving cavity 102 located below the first receiving cavity 101. The first receiving cavity 101 and the second receiving cavity 102 are spaced apart, and the electromagnetic transmitting device 300 is located in the second receiving cavity. This separates the electromagnetic transmitting device 300 from the humidifier 200, preventing the gas path humidification system from affecting the electromagnetic transmitting device 300.

[0033] In one embodiment, the housing includes a third receiving cavity 103 located on the side of the first receiving cavity 101 away from the humidifier and a connecting hole located between the first receiving cavity 101 and the third receiving cavity 103. The air passage is located in the third receiving cavity 103, and the air inlet 202 passes through the connecting hole and enters the third receiving cavity 103.

[0034] Specifically, combined Figure 3-4 As shown, the host includes a main housing 11 and a bottom housing 13 disposed at the bottom of the main housing 11. The main housing 11 and the bottom housing 13 together enclose the third receiving cavity 103. The main housing 11 and the bottom housing 13 are assembled in the vertical direction. In other embodiments, the main housing 11 and the bottom housing 13 may also be integrally formed.

[0035] The first receiving cavity 101 is adjacent to the third receiving cavity 103. The first receiving cavity 101 opens laterally toward the humidifier 200 for installation of the humidifier 200. In other words, the humidifier 200 and the main unit 100 are assembled and fixed laterally. The second receiving cavity 102 is adjacent to the third receiving cavity 103. The second receiving cavity 102 is located below the first receiving cavity 101. The electromagnetic transmitting device 300 is separately disposed in the second receiving cavity 102, which can provide better protection for the electromagnetic transmitting device 300.

[0036] In one embodiment, the electromagnetic transmitting device 300 includes a circuit device and a coil 30 connected to the circuit device. The central axis of the coil 30 passes through the metal sheet 210, ensuring that the metal sheet 210 can cut the magnetic field. The circuit device includes at least a voltage resonant converter, which is disposed at both ends of the coil.

[0037] More specifically, when a high-frequency changing voltage is applied to coil 30, a high-frequency alternating current is generated within coil 30, which in turn generates closed high-frequency alternating magnetic field lines along the radius of the coil disk, i.e., a high-frequency alternating magnetic field. The metal sheet 210 cuts the alternating magnetic field lines, generating an alternating current (i.e., eddy current). The eddy current causes the metal atoms in the metal sheet 210 to move at high speed and randomly, colliding and rubbing against each other to generate heat energy—this is the process of magnetothermal generation. The heat energy generated by this electromagnetic heating is transferred to the liquid in the water storage chamber 201.

[0038] In a specific embodiment, combined with Figure 5-6 As shown, the coil is a toroidal coil, and the coil has 2 to 20 turns.

[0039] In one embodiment, the electromagnetic transmitting device 300 includes magnets 40 disposed below the coil 30, the arrangement of which adapts to the shape of the coil 30. The coil 30 is an excitation coil, and the magnets 40 are permanent magnets. The magnets 40 are installed below the coil 30 to shield the magnetic field lines below the coil 30, causing the magnetic field lines generated by the coil 30 to concentrate upwards, increasing the upper magnetic field strength and reducing magnetic field leakage to the outside.

[0040] The electromagnetic transmitting device 300 is disposed on the bottom housing 13; the bottom housing 13 is provided with a plurality of first support walls 131 arranged along a first direction and second support walls 132 arranged along a second direction, the first direction and the second direction being horizontal and perpendicular to each other; the first support walls 131 and the second support walls 132 surround to form a plurality of fixed cavities 135, and the magnets 40 are fixed to the fixed cavities 135 one by one. The plurality of magnets 40 are symmetrically distributed.

[0041] At least a portion of the coil 30 extends along a second direction, and the second support wall 132 includes retaining grooves 134 recessed from its surface for holding the coil. The second support wall 132 includes a plurality of spaced-apart retaining grooves 134, and a plurality of turns of the coil are fixed to the retaining grooves 134 one by one.

[0042] In a specific embodiment, the coil 30 includes a second elongated portion 32 extending along a second direction and a first elongated portion 31 extending along a first direction. The coil 30 also includes an arc-shaped portion 33 that bends and connects the second elongated portion 32 and the first elongated portion 31.

[0043] The electromagnetic heating device 300 includes at least two first magnets located in the middle along the second direction and at least two second magnets located at both ends along the second direction. The first magnets are located below the second elongated portion 32. The two first magnets are symmetrically arranged along the first direction, and each first magnet spans half a turn of the second elongated portion 32 of the coil 30.

[0044] Two second magnets are located below the first elongated portion 31 and the arc-shaped portion 33, with each second magnet located at the middle position of the coil 30 along the first direction.

[0045] In other embodiments, the number, shape, and installation position of the magnets may be adjusted according to the magnetic field shielding effect.

[0046] The bottom housing includes a third support wall 133, which is angled to the first support wall 131 and the second support wall 132. The third support wall 133 is provided with a retaining groove 134 for holding the coil. The arc-shaped portion 33 of the coil is fixed to the retaining groove 134 of the third support wall 133. The retaining grooves of the second support wall 132 and the third support wall 133 are arranged together to form an annular shape to accommodate the shape of the coil 30, so that the annular coil 30 is held in the retaining groove 134.

[0047] The beneficial effects of this utility model include: the electromagnetic emission device 300 is located at the bottom of the main unit 100 and at the bottom of the humidifier 200, making reasonable use of the space of the main unit 100 to heat the liquid in the humidifier; the electromagnetic heating device 300 and the gas humidification system of the humidifier 200 are separated, avoiding the risks and malfunctions caused by contact between the gas humidification system and the electromagnetic heating device 300; the heating and humidification function is achieved by electromagnetic heating, and the electromagnetic heating device 300 can heat the metal sheet 210 without contacting it, achieving heat conduction, with a short transmission path, reducing heat loss during the transmission process, and improving heating efficiency.

[0048] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0049] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A breathing machine, characterized by, The humidifier comprises a host and a humidifier connected to the host, the humidifier has a water storage room, an air inlet communicating with the water storage room, and a metal sheet arranged at the bottom of the water storage room, the host comprises a shell, an air path channel and an electromagnetic emission device arranged in the shell, and at least part of the humidifier is installed in the shell; the air inlet extends into the shell and communicates with the air path channel, the metal sheet is located above the electromagnetic emission device, and the breathing machine is configured: after power-on, the electromagnetic emission device generates a magnetic field, the metal sheet generates heat by cutting the magnetic field, thereby heating the water storage room; The electromagnetic emission device comprises a circuit device, a coil connected to the circuit device, and a magnet arranged below the coil; The shell comprises a bottom shell arranged at the bottom, and the electromagnetic emission device is arranged in the bottom shell; the bottom shell is provided with a plurality of first support walls arranged in a first direction and a plurality of second support walls arranged in a second direction, the first direction and the second direction are horizontal directions and perpendicular to each other; the first support walls and the second support walls surround to form a plurality of fixing cavities; the magnet is fixed in the fixing cavity one by one; At least part of the coil extends along the second direction, and the second support wall comprises a clamping groove recessed from the surface thereof and used for clamping the coil; The second support wall comprises a plurality of clamping grooves arranged at intervals, and a plurality of coils are fixed in the clamping grooves one by one.

2. The ventilator of claim 1, wherein, The shell comprises a first containing cavity for installing part of the humidifier, a second containing cavity located below the first containing cavity, the first containing cavity and the second containing cavity are arranged at intervals, and the electromagnetic emission device is located in the second containing cavity.

3. The ventilator of claim 2, wherein, The shell comprises a third containing cavity located on the side of the first containing cavity away from the humidifier, and a communication hole located between the first containing cavity and the third containing cavity, the air path channel is located in the third containing cavity, and the air inlet passes through the communication hole into the third containing cavity.

4. The ventilator of claim 1, wherein, The central axis of the coil passes through the metal sheet.

5. The ventilator of claim 4, wherein, The coil is a ring-shaped coil, and the coil is arranged in 2-20 turns.

6. The ventilator of claim 4, wherein, The arrangement mode of the plurality of magnets is adapted to the shape of the coil.

7. The ventilator of claim 1, wherein, The bottom shell comprises a third support wall, the third support wall is arranged at an angle with the first support wall and the second support wall, the third support wall is provided with a clamping groove for holding the coil; the clamping grooves of the second support wall and the clamping grooves of the third support wall are arranged together to form a ring.

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